-al -ol a-a a-b a-t aaa aab aag aak aal aao aat ab- aba abb abg abk abl abo abt ag- aga agb agg agk agl ago agt aka akb akg akk akl ako al- ala alb alg alk all alo alt aoa aob aog aok aol aoo aot at- ata atb atg atl ato att baa bab bag bak bal bao bat bba bbb bbg bbk bbl bbo bbt bga bgb bgg bgk bgl bgo bgt bka bkb bkg bkk bkl bko bkt bla blb blg blk bll blo blt boa bob bog bok bol boo bot bta btb btg btk btl bto btt gaa gab gag gak gal gao gat gba gbg gbk gbl gbo gbt gga ggb ggg ggo ggt gka gkb gko gkt gla glb glg glk gll glo glt goa gob gog gok gol goo got gta gtb gtg gtk gtl gto gtt k-t ka- kaa kab kag kak kal kao kat kba kbb kbk kbl kbo kga kgb kgl kgo kkb kkk kkl kkt kl- kla klb klg klo klt koa kob kog kok kol koo kot kta ktb ktg ktk ktl kto ktt la- laa lab lag lak lal lao lat lba lbb lbg lbk lbl lbo lbt lga lgb lgg lgk lgl lgo lgt lka lkb lkg lkl lkt lla llb llg llk lll llo llt loa lob log lok lol loo lot lta ltb ltg ltk ltl lto ltt oaa oab oag oak oal oao oat ob- oba obb obg obk obl obo obt oga ogg ogl ogo ogt oka okb okg okk okl oko ola olb olg olk oll olo olt oo- ooa oob oog ook ool ooo oot ot- ota otb otg otk otl oto ott taa tab tag tak tal tao tat tba tbb tbg tbk tbl tbo tbt tga tgb tgg tgk tgl tgo tgt tka tkb tkg tkk tkl tko tkt tla tlg tlk tll tlo tlt to- toa tob tog tok tol too tot tta ttb ttg ttk ttl tto ttt